Electronic product research and development, sales, after-sales maintenance services; Technical services, technical development, technical consultation and technology transfer in the field of pest control; Mechanical equipment research and development, manufacturing, sales; Sales of chemical products (excluding licensed chemical products), environmental protection equipment, hygiene products, pet food and supplies, indoor hygiene insecticides, cleaning products, daily necessities; Pest control services; Import and export of goods and technologies (except those prohibited by the state or involving administrative examination and approval). (For projects subject to approval according to law, business activities can only be carried out with the approval of relevant departments)